Anti-jamming high-stability ball valve

Abstract

The utility model provides an anti-jamming high-stability ball valve, which belongs to the field of valves, and comprises a valve body, a first valve cover, a ball body and a positioning column, a second through hole is arranged in the valve body, two ends of the positioning column are detachably connected with the valve body through first fasteners, a limit groove matched with the positioning column is arranged at the lower end of the ball body, and the first valve cover is arranged in the limit groove. A cushion block is arranged between the positioning column and the ball body, the upper end of the positioning column is sleeved with a first bearing, and the outer wall of the first bearing abuts against the limiting groove. A third through hole coaxial with the second through hole is formed in the first valve deck, and the first valve deck is detachably connected with the valve body through a fastener. According to the utility model, the positioning column is arranged, so that valve jamming caused by eccentric rotation of the ball body is avoided; in addition, the first valve cover is detachably connected with the valve body, medium particles can be removed in time if being accumulated in the ball valve, and valve jamming is avoided; and the valve seat assembly is further arranged, so that the sealing performance of the ball, the first valve cover and the valve body is guaranteed, and meanwhile the ball and the valve seat are prevented from being blocked.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely relates to a kind of anti-jamming high stability ball valve. BACKGROUND

[0002] Ball valve is by using rotating ball to control the opening and closing of valve, its main feature is simple structure, good sealing performance, easy operation, widely used in petroleum, natural gas, chemical industry, water treatment and other fields.Ball valve is indispensable key component in fluid control system.

[0003] However, traditional ball valve is prone to jam in the process of use, and ball valve is usually replaced directly after jam, causing waste of resources.Therefore, it is of great significance to design a ball valve which is anti-jamming and has precise and stable ball rotation. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the shortcomings and deficiencies of prior art, and provides a kind of anti-jamming high stability ball valve.

[0005] The technical scheme adopted by the utility model is as follows: a kind of anti-jamming high stability ball valve, including valve body, first valve cover and ball, the ball is provided with first through hole, the valve body is provided with second through hole, further including positioning column, the positioning column both ends are detachably connected with valve body by first fastener, the lower end of the ball is provided with the limiting groove compatible with the positioning column, the positioning column and the ball are provided with pad, and the upper end of the positioning column is provided with first bearing, and the outer wall of the first bearing is in abutment with the ball;The first valve cover is provided with the third through hole coaxial with the second through hole, the third through hole, the first through hole and the second through hole form medium flow channel when communicated, and the first valve cover is detachably connected with the valve body by third fastener.

[0006] The first sealing ring is arranged between the positioning column and the valve body.

[0007] Valve seat assembly is arranged in the valve body and the first valve cover, and the valve seat assembly includes valve seat, sealing sleeve, first spring and mounting ring, the valve seat and the ball form sealing part, the gap is arranged between the sealing sleeve and the mounting ring, and the sealing sleeve is arranged on the valve seat, one end of the first spring is connected to the sealing sleeve, and the other end is connected to the mounting ring.

[0008] The second sealing ring is arranged between the sealing sleeve and the valve seat.

[0009] The mounting ring is provided with pad ring away from the ball, and the dustproof ring is arranged between the pad ring and the mounting ring in up-down symmetry.

[0010] The cleaning assembly is arranged in the ball, and comprises a fixed shaft, a rotating plate and a scraper, the fixed shaft is connected with the inner wall of the ball at both ends and a second bearing is arranged on the fixed shaft, the rotating plate is symmetrically arranged at both ends of the second bearing and an active slot is arranged in the rotating plate, the scraper is arranged in the active slot, one end of the scraper penetrates through the rotating plate and abuts against the ball, and the other end of the scraper is connected with the outer wall of the second bearing through a second spring.

[0011] A connecting rod is symmetrically arranged in the rotating plate, and a pulley is arranged at the end of the connecting rod and abuts against the scraper.

[0012] A second valve cover is connected with the upper end of the valve body through a second fastener, and a third sealing ring is arranged between the second valve cover and the valve body.

[0013] A valve rod coaxial with the positioning column is arranged at the upper end of the ball, the valve rod penetrates through the second valve cover, and a fourth sealing ring is arranged between the second valve cover and the valve rod.

[0014] A thrust washer is arranged between the valve rod and the second valve cover, a third bearing is arranged on the lower part of the valve rod, and the outer wall of the third bearing abuts against the second valve cover.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The positioning column is arranged in the utility model, so that the valve jamming caused by eccentric rotation of the ball is avoided.

[0017] 2. The first valve cover and the valve body are detachably connected in the utility model, medium particles accumulated in the ball valve can be removed in time, and the valve jamming is avoided.

[0018] 3. The valve seat assembly is arranged in the utility model, the sealing property of the ball, the first valve cover and the valve body is ensured, meanwhile, the valve seat assembly can be telescopic according to the position of the ball, and the ball and the valve seat are prevented from being jammed.

[0019] 4. The cleaning assembly is arranged in the utility model, medium particle residues or dirt in the ball can be removed, and the service life of the ball valve is improved. DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings obtained according to these drawings without creative labor still belong to the scope of the utility model.

[0021] Figure 1 It is a schematic view of the utility model;

[0022] Figure 2 For Figure 1 Enlarged view of middle A;

[0023] Figure 3 For Figure 1 Enlarged view of middle B;

[0024] Figure 4 For Figure 3 Enlarged view of middle C;

[0025] Figure 5 For Figure 1 Enlarged view of middle D. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described further in detail below in combination with the drawings.

[0027] It should be noted that all the expressions of "first" and "second" in the embodiments of the utility model are used to distinguish two same name but different entities or different parameters, and it can be seen that "first" and "second" are only for the convenience of expression, and should not be understood as the limitation of the embodiments of the utility model, and the subsequent embodiments will not be described one by one.

[0028] The direction and position terms mentioned in the utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side" and the like, are only the direction or position of the drawings. Therefore, the direction and position terms used are used to explain and understand the utility model, and are not limited to the protection scope of the utility model.

[0029] Embodiment one:

[0030] As Figures 1 to 5 shown, an embodiment provided by the utility model:

[0031] A high-stability ball valve preventing jamming, comprising a valve body 1, a first valve cover 2 and a ball body 3. The upper end of the valve body 1 is connected with a second valve cover 10 through a second fastener 16, a third sealing ring 11 is arranged between the second valve cover 10 and the valve body 1, so as to ensure the sealing property between the two. The upper end of the ball body 3 is provided with a valve rod 12, the valve rod 12 penetrates through the second valve cover 10, and a fourth sealing ring 13 is arranged between the second valve cover 10 and the valve rod 12, so as to ensure the sealing property between the two and prevent medium leakage. A thrust washer 14 is arranged between the valve rod 12 and the second valve cover 10, a third bearing 15 is sleeved on the lower part of the valve rod 12, and the outer wall of the third bearing 15 abuts against the second valve cover 10.

[0032] The anti-blocking high-stability ball valve further comprises a positioning column 5 coaxial with the valve rod 12, the positioning column 5 is detachably connected with the valve body 1 through the first fastener 6 at both ends, the lower end of the ball 3 is provided with a limiting groove 31 matched with the positioning column 5, a gasket 52 is arranged between the positioning column 5 and the ball 3, and a first bearing 51 is sleeved on the upper end of the positioning column 5, the outer wall of the first bearing 51 abuts against the ball 3, so that the ball 3 can rotate relative to the positioning column 5, but at the same time, the positioning column 5 limits the rotation of the ball 3, preventing the eccentricity of the ball 3 during the opening and closing of the valve, and further preventing the blocking failure of the ball valve.

[0033] The ball is provided with a first through hole 32, the valve body 1 is provided with a second through hole 101, the first valve cover 2 is provided with a third through hole 21 coaxial with the second through hole 101, the third through hole 21, the first through hole 32 and the second through hole 101 form a medium flow channel when communicated, and the first valve cover 2 is detachably connected with the valve body 1 through the third fastener 4. If the ball valve is blocked due to the accumulation of medium, the accumulated medium can be cleaned by detaching the first valve cover 2, the third fastener 4 and the valve body 1, without replacing the entire ball valve, thereby saving cost and resources. The positioning column 5 and the valve body 1 are provided with a first sealing ring 7 to ensure the sealing between them and prevent leakage.

[0034] In order to ensure the sealing of the ball 3, the valve body 1 and the first valve cover 2, the valve body 1 and the first valve cover 2 are provided with a valve seat assembly 8, the valve seat assembly 8 comprises a valve seat 81, a sealing sleeve 82, a first spring 83 and a mounting ring 84, the valve seat 81 forms a sealing part with the ball 3, the sealing sleeve 82 and the mounting ring 84 are both sleeved on the valve seat 81 and are provided with a gap therebetween, and the first spring 83 is connected to the sealing sleeve 82 at one end and to the mounting ring 84 at the other end. The first spring 83 is enclosed inside and does not contact the medium, thereby prolonging the service life of the first spring 83. The sealing sleeve 82 and the valve seat 81 are provided with a second sealing ring 85. The mounting ring 84 is provided with a gasket ring 86 at the end away from the ball 3, and the dustproof ring 87 is symmetrically arranged between the gasket ring 86 and the mounting ring 84.

[0035] In order to remove the residual medium particles or dirt and the like on the inner wall of the ball 3, so as to avoid affecting the efficiency of the medium through the ball valve, the cleaning assembly 9 is arranged in the ball 3, the cleaning assembly 9 comprises a fixed shaft 91, a rotating plate 92 and a scraper 93, the fixed shaft 91 is connected with the inner wall of the ball 3 at both ends and a second bearing 94 is sleeved on the fixed shaft 91, the rotating plate 92 is symmetrically arranged at both ends of the second bearing 94 and an active groove 921 is arranged in the rotating plate 92, the scraper 93 is arranged in the active groove 921, one end of the scraper 93 penetrates through the rotating plate 92 and abuts against the ball 3, and the other end of the scraper 93 is connected with the outer wall of the second bearing 94 through the second spring 95. When the medium passes through the first through hole 32, the scraper 93 is driven to rotate, and the residual particles on the inner wall of the ball 3 can be scraped off by the scraper 93.

[0036] The connecting rod 922 is symmetrically arranged in the rotating plate 92, the end of the connecting rod 922 is provided with a pulley 9221, and the pulley 9221 abuts against the scraper 93. In the rotating process, the scraper 93 can slide in the axial direction by extruding the second spring 95 to adapt to different positions of the inner wall of the ball 3, the arrangement of the pulley 9221 can make the scraper 93 slide in the axial direction more smoothly, and thus the cleaning effect is improved.

[0037] The above only discloses the preferred embodiment of the utility model, of course, cannot be limited by this to limit the scope of the utility model right, therefore, the equivalent change made according to the utility model claim still belongs to the range covered by the utility model.

Claims

1. A high-stability ball valve against blockage, comprising a valve body (1), a first valve cover (2) and a ball body (3), wherein a first through hole (32) is arranged in the ball body, and a second through hole (101) is arranged in the valve body (1), characterized in that, The positioning column (5) is detachably connected with the valve body (1) through the first fastener (6) at both ends, the lower end of the ball (3) is provided with a limiting groove (31) matched with the positioning column (5), a cushion block (52) is arranged between the positioning column (5) and the ball (3), the upper end of the positioning column (5) is sleeved with a first bearing (51), and the outer wall of the first bearing (51) abuts against the ball (3); the first valve cover (2) is provided with a third through hole (21) coaxial with the second through hole (101), the third through hole (21), the first through hole (32) and the second through hole (101) are communicated to form a medium flow channel, and the first valve cover (2) is detachably connected with the valve body (1) through the third fastener (4).

2. A high-stability ball valve according to claim 1, characterized in that The first sealing ring (7) is arranged between the positioning column (5) and the valve body (1).

3. A high stability ball valve according to claim 1, wherein The valve body (1) and the first valve cover (2) are both provided with a valve seat assembly (8), the valve seat assembly (8) comprises a valve seat (81), a sealing sleeve (82), a first spring (83) and a mounting ring (84), the valve seat (81) forms a sealing part with the ball (3), a gap is arranged between the sealing sleeve (82) and the mounting ring (84), and the sealing sleeve (82) and the mounting ring (84) are both sleeved on the valve seat (81), one end of the first spring (83) is connected to the sealing sleeve (82), and the other end is connected to the mounting ring (84).

4. A high-stability ball valve according to claim 3, characterized in that The second sealing ring (85) is arranged between the sealing sleeve (82) and the valve seat (81).

5. A high stability ball valve according to claim 4, wherein The end of the mounting ring (84) away from the ball (3) is provided with a gasket ring (86), and the dustproof ring (87) is arranged between the gasket ring (86) and the mounting ring (84) in a symmetrical manner.

6. A high stability ball valve according to claim 1, wherein The ball (3) is provided with a cleaning assembly (9), the cleaning assembly (9) comprises a fixed shaft (91), a rotating plate (92) and a scraper (93), the fixed shaft (91) is connected with the inner wall of the ball (3) at both ends and is sleeved with a second bearing (94) thereon, the rotating plate (92) is symmetrically arranged at both ends of the second bearing (94) and is provided with a movable groove (921) in the inner wall, the scraper (93) is arranged in the movable groove (921), one end of the scraper (93) penetrates out of the rotating plate (92) and abuts against the ball (3), and the other end is connected with the outer wall of the second bearing (94) through a second spring (95).

7. A high stability ball valve according to claim 6, wherein The connecting rod (922) is arranged in the rotating plate (92) in a symmetrical manner, and the end of the connecting rod (922) is provided with a pulley (9221) abutting against the scraper (93).

8. A high stability ball valve according to claim 1, wherein The upper end of the valve body (1) is connected with a second valve cover (10) through a second fastener (16), and the third sealing ring (11) is arranged between the second valve cover (10) and the valve body (1).

9. A high stability ball valve according to claim 8, wherein The upper end of the ball (3) is provided with a valve rod (12) coaxial with the positioning column (5), the valve rod (12) penetrates through the second valve cover (10), and the fourth sealing ring (13) is arranged between the second valve cover (10) and the valve rod (12).

10. A high-stability ball valve according to claim 9, characterized in that A thrust washer (14) is arranged between the valve stem (12) and the second valve cover (10), and a third bearing (15) is sleeved at the lower part of the valve stem (12), and the outer wall of the third bearing (15) abuts against the second valve cover (10).

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